Question

The radius of one circular field is 5 metre and that of the other is 3 metre find the radius of the circular field whose area is the difference of the areas of the first and second field

Answer 1

#answerwithquality#bal

Step-by-step explanation:

Area of new field= area of bigger field - area of smaller field

Area = pi(5^2-3^2)

Area = pi(25-9)

Area = pi*16

pi* r^2 = pi*16

r^2=16

r=√16

Therefore r=+4 or r=-4

But length cannot be negative.

Therefore r=+4 meters.

Hope this will help.